VMC: catcher manufacturing dual-flow heat

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xxx74
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by xxx74 » 23/10/15, 15:01

It would not be possible to imagine a water exchanger directly implanted in the vmc double flow replacing the traditional air exchanger air?

Me this is what I wanted to do more, the heat pump will not operate throughout the year and will be adjusted to a constant temperature, so even if the water runs all year in vmc, it not necessarily produce hot in summer, only a tempered air, then that is what I tell myself, as the CAP is reversible, although it will not happen to me as a cold air conditioning.

Possible? Not as interesting as what you described to me?

In the meantime, thank you for your answers.
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Gaston
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by Gaston » 23/10/15, 15:16

xxx74 wrote:It would not be possible to imagine a water exchanger directly implanted in the vmc double flow replacing the traditional air exchanger air?
We can all imagine, but for what purpose :?:

The exchanger air to air in the VMC double flow is there to recover the calories of the air we extract (instead of throwing them out as with a single flow VMC).
If you delete it, you remove all the energy interest of the double stream.



xxx74 wrote:Me this is what I wanted to do more, the heat pump will not operate throughout the year and will be adjusted to a constant temperature, so even if the water runs all year in vmc, it not necessarily produce hot in summer, only a tempered air, then that is what I tell myself, as the CAP is reversible, although it will not happen to me as a cold air conditioning.

Possible? Not as interesting as what you described to me?
You should answer the question: "Why :?:"

Do you plan:
  • to save energy :?:
  • make financial savings :?:
  • improve comfort :?:
  • please you with a wacky plant :?:
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xxx74
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by xxx74 » 23/10/15, 15:43

I just thought as has ventilate my house, so use the calories that will already produce my cap to heat the incoming air as being high Savoie 1000 meters above sea level and having no desire to invest in vmc double flow performance, it could be a good alternative for ventilation without cooling my inner ...

After, if you tell me that the manufacture of a plastic alveolar exchanger would be equally effective, a single shot, winter, I drop my idea ...
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by Gaston » 23/10/15, 16:20

xxx74 wrote:I just thought as has ventilate my house, so use the calories that will already produce my cap to heat the incoming air
We must understand that a calorie is still a calorie, whether transported by air or floor heating.

So with a given air flow and temperature data in the home and outside, the CAP will consume exactly the same as you inject the calories in the air or in the floor.

xxx74 wrote:because being high Savoie 1000 meters above sea level and having no desire to invest in a double vmc flow performance, it could be a good alternative for ventilation without cooling my inner ...
Yes, but consuming the same as if you chauffes floor ...

So what interest to invest, to complicate your installation (with the risk of failure that implies) to save ... do nothing (no money, no energy) :?:
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xxx74
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by xxx74 » 23/10/15, 18:27

Well, ok.

The goal was not heated, the goal was only to have an air entering through the hottest vmc exchanger with a home ...

It is true that through the pac, it's not really free, but I thought this would have required such a small exchanger for the pac, it would not be represented little extra cost, or very little.

Then the complicated plan was not so sorcerer than that, draw two pipes connected to the heat exchanger and a little electro valve to be connected to a thermostat, then I am not a connoisseur, maybe I hallucinating ...

Anyway, I'll drop the idea because to see your answers ...

Thanks anyway.
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by I Citro » 25/10/15, 11:38

VMC double flow reduces waste by recovering energy in the exhaust air to return to the supply air.

For this reason, it is important not to remove the exchanger from the VMC and it does not have to put this hot battery before the interchange but after he did his job.

A double flow CMV will preheat the air "for free" (it must still be moved), but it also allows it to be cooled in the summer to limit the need for air conditioning. There is even on good CMVs a bypass function which allows to blow cooler night air to cool the home without passing it through the exchanger which would make it lose its freshness.

Managing a hot battery requires great rigor to achieve a measurable gain (insulation, control, ...)

Ideally, a hydraulic underfloor heating (and possibly refreshing) is the best transmitter for managing the temperature of a habitation (larger exchange surface and very low delta T ° for optimum performance). Its implementation also requires good skills.
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by xxx74 » 25/10/15, 11:47

If ever I found this site quite interesting for those cqui cmrenne English:

https://www.econologie.com/forums/vmc-fabric ... 3-130.html

Well, I think that the link refers to the last page of the subject, but there are good prototypes ...
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by chatelot16 » 26/10/15, 09:49

I do not see the interest of adding heat vmc double flux: the vmc has a good performance with a relatively low flow, too weak to participate in the heating

if we want to heating must be a stronger flow, and taken in closed circuit on the inside

if we want to heating must be a variable flow with the power output, while the flow of the extractor fan must be determined by the need for ventilation: the more reason to leave the heating vmc indepandante
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by xxx74 » 26/10/15, 12:00

I'd like to know if there is a way to produce or manage the humidity of the house via the vmc double flow without using a circular interchange being built on a car (for vmc)?

I understood that with an interchange has against current or cross-flow condensate does not pass into the air fed back nine, so how can it not end up with too dry rooms without having to add to each room a humidifier?

Many heating have told me that the low temperature underfloor heating system are among the best, but I find a rather unpleasant inconvenience, and that's just the dry air generated by this system that causes me problems sinus...
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by chatelot16 » 26/10/15, 16:21

the purpose of the extractor fan, whether single or dual stream is to evacuate the pollution vapor or other gas ... so of course it evacuated moisture recycle condensation in the double-flow exchanger would be stupid because we also condenses there the rawhide that is desired evacuate

solution when it is too dry to evaporate pure water

pulverize water in the double flow exchanger? it would absorb more heat thus increase performance

but I do not like the idea of ​​putting moisture into the air hoses, a good grow bacteria or mold

if you must add moisture I prefer to do it by means indepandant
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